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Finding the Fourth Proportional to 593.17, 818.61 and 331.18

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Solution

The fourth proportional to 593.17, 818.61 and 331.18 is: 457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.17 : 818.61 = 331.18 : x
  2. Step 2: Convert to fraction form
    593.17/818.61 = 331.18/x
  3. Step 3: Cross multiply
    593.17x = 818.61 × 331.18
  4. Step 4: Simplify right side
    593.17x = 271,107.26
  5. Step 5: Solve for x
    x = 271,107.26/593.17
  6. Step 6: Final answer
    x = 457.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.